4 Replies Latest reply: Sep 2, 2012 5:56 PM by ilovehaters
ilovehaters Level 1 Level 1 (0 points)

I have a new 13" 2012 MacBook Air, approx. 8 weeks old.  It shipped with Lion installed, and everything was great.


I upgraded to 10.8.0 when it was released, and things were still great  (except I did experience the Thunderbolt audio issue that ended up being one of the fixes in 10.8.1)


Last Friday night (1 week ago), I upgrade to 10.8.1.  I was happy to find that my Thunderbolt audio issue appeared to be fixed, as expected.


However, this is when things started to go downhill.   I have now have two issues, which may or may not be related to each other:


Firstly, in the past week, I have had a significant number of kernel panics (i.e. more than 5). An example is included below.

Before the 10.8.1 upgrade, I can't recall a single kernel panic.  In all instances, the panic appears to be related to coreaudiod (specifically, something to do with com.apple.iokit.IOAudioFamily).  From what I understand, the error is caused when trying to read from an invalid memory address (ie. type 14=page fault; and "Error code: 0x0000000000000000" indicates a read operation).   That's the first problem, and it's pretty annoying as you can imagine.


Secondly, I'm also experiencing similar symptoms as described in this thread (https://discussions.apple.com/thread/4159444);  where the mouse pointer can be moved around, but the keyboard and touchpad don't respond to any input, and I'm unable to do things like switch between apps or force quit apps.

Interestingly, if I click on my user name in the menu bar and select Login window…;  I can login as a different user and everything is working fine for that other user session.  Then if I switch back to my original user session, the keyboard & trackpad are still unresponsive and the problem persists.   So, it would seem that it is not a system-wide kernel issue (such as a bad driver), otherwise you would expect it to affect all logged on users equally, no?

(Also interesting: the problem has been experienced at least once in that other user's account too, suggesting that it's not simply a bad preference or setting in my account)


Being a fairly new machine, I don't have that many 3rd party apps installed yet.  Typically I'm only running Chrome, TweetDeck, Evernote, Mail.app, and Calendar.app.  In the menu bar I also have Dropbox, Google Drive, Skitch and Stay (http://cordlessdog.com/stay/) running.


I'm hesitant to jump to "it must be a hardware issue", given that everything was fine for 7 weeks;  and the problems only started after upgrading to 10.8.1.    However, I'm surprised that if it is a 10.8.1 issue, that more people aren't reporting similar kernel panics etc.  (maybe they are, and I just haven't found them).  I did run AHT, but it found no problems.  I have also run the Disk Utility Repair Permissions, as some people with the keyboard issue described above have suggested, but to no avail.


Finally, I'm also running a similar software combination on my 17" MBP at work (10.8.1, Chrome, TweetDeck, Evernote, Stay etc…);  and I'm having none of these problems there.


I would appreciate any pointers that anybody can offer.



Sample kernel panic:


Interval Since Last Panic Report:  32033 sec

Panics Since Last Report:          2

Anonymous UUID:                    3BBEEF33-398F-4A9E-8F98-8A6CB88CB8F4


Thu Aug 30 21:14:35 2012

panic(cpu 0 caller 0xffffff80092b7b95): Kernel trap at 0xffffff7f8a4c0ae3, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x00000000badded07, CR3: 0x000000005a9fc04a, CR4: 0x00000000001606e0

RAX: 0x00000000baddecaf, RBX: 0xffffff802ec1e310, RCX: 0x00000000baddecaf, RDX: 0xffffff801c294701

RSP: 0xffffff80f9603aa0, RBP: 0xffffff80f9603ac0, RSI: 0xffffff802ec1e310, RDI: 0xffffff801c294780

R8:  0x0000000000000000, R9:  0x0000000000000000, R10: 0x00000000000010bc, R11: 0x0000000000000206

R12: 0xffffff80f9603c18, R13: 0x00000000e00002f0, R14: 0xffffff801d2bce00, R15: 0xffffff8021a4f700

RFL: 0x0000000000010207, RIP: 0xffffff7f8a4c0ae3, CS:  0x0000000000000008, SS:  0x0000000000000010

Fault CR2: 0x00000000badded07, Error code: 0x0000000000000000, Fault CPU: 0x0


Backtrace (CPU 0), Frame : Return Address

0xffffff80f9603740 : 0xffffff800921d5f6

0xffffff80f96037b0 : 0xffffff80092b7b95

0xffffff80f9603980 : 0xffffff80092ce4ad

0xffffff80f96039a0 : 0xffffff7f8a4c0ae3

0xffffff80f9603ac0 : 0xffffff7f8a4ba8b3

0xffffff80f9603ae0 : 0xffffff7f8a4bbb6b

0xffffff80f9603b20 : 0xffffff8009647b6a

0xffffff80f9603b80 : 0xffffff7f8a4bb41a

0xffffff80f9603bc0 : 0xffffff8009646001

0xffffff80f9603c00 : 0xffffff7f8a4bb375

0xffffff80f9603c20 : 0xffffff80096638ef

0xffffff80f9603d70 : 0xffffff80092981a1

0xffffff80f9603e80 : 0xffffff8009220abd

0xffffff80f9603eb0 : 0xffffff8009210448

0xffffff80f9603f00 : 0xffffff80092195fb

0xffffff80f9603f70 : 0xffffff80092a5ad6

0xffffff80f9603fb0 : 0xffffff80092ced13

      Kernel Extensions in backtrace:

         com.apple.iokit.IOAudioFamily(1.8.9f9)[FCB6B5D9-28D3-37BB-917C-F77C3B2CF2F8]@0x ffffff7f8a4b0000->0xffffff7f8a4defff

            dependency: com.apple.kext.OSvKernDSPLib(1.6)[E29D4200-5C5A-3A05-8A28-D3E26A985478]@0xfffff f7f8a4a9000


BSD process name corresponding to current thread: coreaudiod


Mac OS version:



Kernel version:

Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9.2~1/RELEASE_X86_64

Kernel UUID: 3005059E-270B-3B9F-940D-7A66C05DDC9D

Kernel slide:     0x0000000009000000

Kernel text base: 0xffffff8009200000

System model name: MacBookAir5,2 (Mac-2E6FAB96566FE58C)


System uptime in nanoseconds: 39662894226930

last loaded kext at 38675625360579: com.apple.driver.AppleUSBCDC     4.1.22 (addr 0xffffff7f8b04e000, size 16384)

last unloaded kext at 39498584421605: com.apple.driver.AppleThunderboltDPOutAdapter     1.8.5 (addr 0xffffff7f8af48000, size 40960)

loaded kexts:

com.apple.filesystems.afpfs     10.0

com.apple.nke.asp_tcp     7.0.0

com.apple.driver.AppleIntelProfile     97

com.apple.filesystems.smbfs     1.8

com.apple.driver.AudioAUUC     1.60

com.apple.iokit.IOBluetoothSerialManager     4.0.9f8

com.apple.filesystems.autofs     3.0

com.apple.driver.X86PlatformShim     1.0.0

com.apple.driver.AGPM     100.12.69

com.apple.driver.ApplePlatformEnabler     2.0.5d4

com.apple.driver.AppleMikeyHIDDriver     122

com.apple.driver.AppleHDA     2.3.0f2

com.apple.driver.AppleMikeyDriver     2.3.0f2

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport     4.0.9f8

com.apple.iokit.IOUserEthernet     1.0.0d1

com.apple.Dont_Steal_Mac_OS_X     7.0.0

com.apple.driver.ApplePolicyControl     3.2.6

com.apple.driver.AppleLPC     1.6.0

com.apple.driver.AppleSMCPDRC     1.0.0

com.apple.driver.AppleUpstreamUserClient     3.5.10

com.apple.driver.AppleSMCLMU     2.0.2d0

com.apple.driver.AppleBacklight     170.2.3

com.apple.driver.AppleMCCSControl     1.0.33

com.apple.driver.AppleIntelHD4000Graphics     8.0.0

com.apple.driver.AppleIntelFramebufferCapri     8.0.0

com.apple.driver.AppleUSBTCButtons     235.4

com.apple.driver.AppleUSBCardReader     3.1.0

com.apple.driver.AppleUSBTCKeyboard     235.4

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1

com.apple.BootCache     34

com.apple.driver.XsanFilter     404

com.apple.iokit.IOAHCIBlockStorage     2.2.1

com.apple.driver.AppleUSBHub     5.1.6

com.apple.driver.AirPort.Brcm4331     601.15.21

com.apple.driver.AppleAHCIPort     2.4.0

com.apple.driver.AppleUSBEHCI     5.1.5

com.apple.driver.AppleUSBXHCI     1.1.0

com.apple.driver.AppleEFINVRAM     1.6.1

com.apple.driver.AppleSmartBatteryManager     161.0.0

com.apple.driver.AppleRTC     1.5

com.apple.driver.AppleACPIButtons     1.6

com.apple.driver.AppleHPET     1.7

com.apple.driver.AppleSMBIOS     1.9

com.apple.driver.AppleACPIEC     1.6

com.apple.driver.AppleAPIC     1.6

com.apple.driver.AppleIntelCPUPowerManagementClient     196.0.0

com.apple.nke.applicationfirewall     4.0.39

com.apple.security.quarantine     2

com.apple.driver.AppleIntelCPUPowerManagement     196.0.0

com.apple.iokit.IOFireWireIP     2.2.5

com.apple.iokit.IOFireWireFamily     4.5.5

com.apple.iokit.IOEthernetAVBController     1.0.2b1

com.apple.security.SecureRemotePassword     1.0

com.apple.driver.AppleProfileTimestampAction     97

com.apple.driver.AppleProfileThreadInfoAction     97

com.apple.driver.AppleProfileRegisterStateAction     97

com.apple.driver.AppleProfileReadCounterAction     97

com.apple.driver.AppleProfileKEventAction     97

com.apple.driver.AppleProfileCallstackAction     97

com.apple.iokit.AppleProfileFamily     97

com.apple.iokit.IOSerialFamily     10.0.6

com.apple.kext.triggers     1.0

com.apple.driver.DspFuncLib     2.3.0f2

com.apple.iokit.IOAudioFamily     1.8.9fc9

com.apple.kext.OSvKernDSPLib     1.6

com.apple.driver.AppleSMBusPCI     1.0.10d0

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport     4.0.9f8

com.apple.iokit.IOSurface     86.0.2

com.apple.iokit.IOBluetoothFamily     4.0.9f8

com.apple.driver.AppleHDAController     2.3.0f2

com.apple.iokit.IOHDAFamily     2.3.0f2

com.apple.driver.X86PlatformPlugin     1.0.0

com.apple.driver.AppleSMC     3.1.3d11

com.apple.driver.IOPlatformPluginFamily     5.2.0d16

com.apple.driver.AppleGraphicsControl     3.2.6

com.apple.driver.AppleBacklightExpert     1.0.4

com.apple.driver.AppleSMBusController     1.0.10d0

com.apple.iokit.IONDRVSupport     2.3.4

com.apple.iokit.IOGraphicsFamily     2.3.4

com.apple.iokit.IOSCSIBlockCommandsDevice     3.5.1

com.apple.iokit.IOUSBMassStorageClass     3.5.0

com.apple.iokit.IOSCSIArchitectureModelFamily     3.5.1

com.apple.driver.AppleUSBMultitouch     235.7

com.apple.driver.AppleThunderboltDPInAdapter     1.8.5

com.apple.driver.AppleThunderboltDPAdapterFamily     1.8.5

com.apple.driver.AppleThunderboltPCIDownAdapter     1.2.5

com.apple.iokit.IOUSBHIDDriver     5.0.0

com.apple.driver.AppleUSBMergeNub     5.1.5

com.apple.driver.AppleUSBComposite     5.0.0

com.apple.driver.AppleThunderboltNHI     1.6.0

com.apple.iokit.IOThunderboltFamily     2.0.3

com.apple.iokit.IOUSBUserClient     5.0.0

com.apple.iokit.IO80211Family     500.15

com.apple.iokit.IONetworkingFamily     3.0

com.apple.iokit.IOAHCIFamily     2.2.0

com.apple.iokit.IOUSBFamily     5.1.6

com.apple.driver.AppleEFIRuntime     1.6.1

com.apple.iokit.IOHIDFamily     1.8.0

com.apple.iokit.IOSMBusFamily     1.1

com.apple.security.sandbox     220

com.apple.kext.AppleMatch     1.0.0d1

com.apple.security.TMSafetyNet     7

com.apple.driver.DiskImages     344

com.apple.iokit.IOStorageFamily     1.8

com.apple.driver.AppleKeyStore     28.18

com.apple.driver.AppleACPIPlatform     1.6

com.apple.iokit.IOPCIFamily     2.7

com.apple.iokit.IOACPIFamily     1.4

com.apple.kec.corecrypto     1.0

Model: MacBookAir5,2, BootROM MBA51.00EF.B00, 2 processors, Intel Core i7, 2 GHz, 8 GB, SMC 2.5f7

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 512 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434353153364D465238412D50422020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434353153364D465238412D50422020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xE9), Broadcom BCM43xx 1.0 (

Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports

Network Service: Display Ethernet, Ethernet, en2

Network Service: Wi-Fi, AirPort, en0

PCI Card: pci11c1,5901, sppci_ieee1394openhci, Thunderbolt@12,0,0

PCI Card: Apple 57761-B0, sppci_ethernet, Thunderbolt@11,0,0

PCI Card: pci12d8,400e, sppci_usbopenhost, Thunderbolt@10,0,0

PCI Card: pci12d8,400f, USB Enhanced Host Controller, Thunderbolt@10,0,2

PCI Card: pci12d8,400e, sppci_usbopenhost, Thunderbolt@10,0,1

Serial ATA Device: APPLE SSD SM256E, 251 GB

USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1a100000 / 2

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8510, 0x1a110000 / 3

USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1d100000 / 2

USB Device: hub_device, 0x0424  (SMSC), 0x2513, 0x1d180000 / 3

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x024c, 0x1d182000 / 6

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8404, 0x1d183000 / 5

USB Device: BRCM20702 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x1d181000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821f, 0x1d181300 / 7

USB Device: hub_device, apple_vendor_id, 0x9127, 0x40100000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x40130000 / 6

USB Device: USB Receiver, 0x046d  (Logitech Inc.), 0xc52b, 0x40133000 / 8

USB Device: Apple Keyboard, apple_vendor_id, 0x024f, 0x40132000 / 7

USB Device: Apple Thunderbolt Display, apple_vendor_id, 0x9227, 0x40170000 / 5

USB Device: FaceTime HD Camera (Display), apple_vendor_id, 0x1112, 0x40150000 / 4

USB Device: Display Audio, apple_vendor_id, 0x1107, 0x40140000 / 3

MacBook Air, OS X Mountain Lion (10.8.1)
  • 1. Re: 10.8.1 kernel panics and random freezing
    Linc Davis Level 10 Level 10 (117,725 points)

    That panic was not caused by third-party software. If it's recurrent, the possibilities are (1) a damaged OS X installation; (2) a hardware fault, which could be internal or in a wired peripheral device; and (3) an obscure bug in OS X.


    You can rule out the first possibility by reinstalling the OS. Probably there will be no change. In that case, make a "Genius" appointment at an Apple Store to have the machine tested. You may have to leave it there for several days. There isn't much point in doing this unless you can reproduce the panic, or unless it happens often enough that it's likely to be repeated at the store. Otherwise you may be told that nothing is wrong.


    Print the first page of the panic report and bring it with you.


    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you know how to restore, and you have at leasttwo independent backups.) Don’t erase the recovery partition, if present.


    *An SSD doesn't need to be zeroed.

  • 2. Re: 10.8.1 kernel panics and random freezing
    ilovehaters Level 1 Level 1 (0 points)

    Thanks for the response Linc.


    If I could just ask a noob question:  to reinstall 10.8.1 do I just go to my App Store purchase history and download/install as normal;  or do I need to somehow (not even sure how) rollback to 10.8.0 first?


    I'm guessing that I simply re-apply 10.8.1 over the top of my system as is; but I just wanted to double-check.



  • 3. Re: 10.8.1 kernel panics and random freezing
    Linc Davis Level 10 Level 10 (117,725 points)

    Back up all data, if you haven't already done so.


    Boot into Recovery by holding down the key combination command-R at the startup chime. Release the keys when you see a gray screen with a spinning dial.


    Note: You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with networks that require any kind of authentication other than a WPA or WPA2 Personal password.


    When the OS X Utilities screen appears, follow the prompts to reinstall the OS. You don't need to erase the boot volume, and you won't need your backup unless something goes wrong. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade, so make a note of those before you begin.

  • 4. Re: 10.8.1 kernel panics and random freezing
    ilovehaters Level 1 Level 1 (0 points)

    Awesome, thanks Linc.


    I have my machine backing up to a Time Capsule, so I should be fine from backup perspective.


    I'll give this a go tonight.  Many thanks for help.